Mings



M. L. CUMMINGS. Lock-Hinge.

Patented Mar. 30, I880.

WITNESSES:

1 INVENTOR gzju/amx aw 7 N. PETERS, PHOTOLITHOGRAPHER, wAsmNGTON D C NlTED STATES PENNsYLvANIA.

LOCK-HINGE.

SPECIFICATION forming part of Letters Patent No. 226,042, dated March 30, 1880.

Application filed January 27, 1880.

To all whom it may concern Be it known that I, MATTHEW L. GUM- MINGS, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Hinges; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being bad to the accompanying drawings, which form part of this specification, in which I Figure 1 is a perspective of my improved hinge, illustrated in an opened position; Fig. 2, a like view of the hinge closed or shut together. Figs. 3 and 4 are perspective details of the leaves of the hinge, and Fig. 5 is a like view of the locking-wedge.

My invention has for its object to provide an attachment which shall operate to automatically lock or fasten hinges when opened, so as to prevent shutters and doors hung upon such hinges from being closed or rattled by the action of the wind.

My invention consists in combining with one leaf of a hinge a sliding bolt or wedge, the knuckle of the other leaf having a collar on which said wedge rides in opening and closing, said collar being formed with a shoulder, behind which the bolt or wedge passes when the hinge is opened, as hereinafter more fully specified.

Referring to the accompanying drawings, A and B represent the two sections or leaves of a hinge, the knuckle O of leaf B having a collar or flange, c, which terminates abruptly in a shoulder, c. D represents a sliding bolt or wedge having a longitudinal slot, (1, and head or thumb piece d. Said wedge is fastened on the leaf Ain such manner that it can be freely slid up and down, as hereinafter specified, the fastening being a riveted pin or stud, 0.

hen the hinge is closed thelower extremity of the wedge rests upon the collar 0 and is held up thereby. On opening the hinge, by pushing back the shutter or door hung thereon, the wedge rides on the collar until it passes the shoulder a, when it drops down behind the same, assuming the position shown in Fig. 1.

This will prevent the shutter or door to which the hinge is secured from being closed until the wedge is lifted. Should the door or shutter move slightly farther back, the wedge will drop down farther and render the fastening perfectly secure. Hence, if a shutter, as frequently occurs, when fully opened and touching the adjacent wall, is at an angle with respect to said wall, the wedge will hold it tightly against the same, and prevent it from. being rattled or closed by the action of the wind.

To close the hinge (and with it the door or shutter to which the same is secured) the wedge is lifted until its lower end is above the collar. It may be then closed in the usual manner.

I have shown my improvements as applied to butt-hinges; but myinvention is notlimited thereto, but may be, without departure from the principle shown, accommodated to strap and other hinges.

I have illustrated the collar 0 as forming substantially a half-circle, the hinge shown being designed to be fully opened when its two leaves are in the same plane, as shown in Fig. 1; but the collar-segment may be increased to form a three-fourths or any other desired fractional part of a circle.

What I claim as my invention is The combination, with the notched leaf A, having the pin or stud e, and the leaf or section B, having the knuckle 0, formed or provided with the collar 0, shouldered at c, of the bolt or sliding catch 1), slotted at d and wedgeshaped at its lower portion, as and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 26th day of January, 1880.

MATTHEW L. CUMMINGS.

Witnesses:

S. J. VAN STAvoREN, OHAs. F. VAN HORN. 

